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301 Stainless Steel Belleville Washers

Belleville washers are unique, conical shaped washers recommended for use in problematic or critical bolting applications. Their conical shape affords a high spring rate over a short deflection to retain the proper bolting stress in a variety of conditions. The loss of a sound bolted connection can lead to fugitive emissions, cause equipment failure, or catastrophic events. Belleville washers can eliminate bolted joint failures due to a variety of causes:

High-temperature bolt yield
Differential thermal expansion
Packing or gasket relaxation or creep
Vibration
Thermal cycling
High cycle applications

301 Stainless Steel Belleville Washers are a common, economical solution to maintain the integrity of bolted connections in a variety of applications.

Products
Mechanical Properties
Chemical Properties
Dimensional Specifications

Dimensional Specifications

Dimensional Specifications301 Stainless Steel Belleville Washer

301 Stainless Steel Belleville Washer dimensions

STS Part Number	Diameter	Belleville Type	Raw Material	ID	OD	T	H	h	Load Rating	Load Rating lbs or N
STS Part Number	Diameter	Belleville Type	Raw Material	ID	OD	Thickness	Height	Deflection	Load Rating	Load Rating lbs or N
WBEL006L15301-PRESET	#6	Light	301 Stainless Steel	0.1380	0.2810	0.0150	0.0210	0.0060	73	lbs
WBEL010S20301	#10	Standard	301 Stainless Steel	0.1950	0.3750	0.0200	0.0300	0.0060	112	lbs
WBEL025-8-18-301	1/4	Standard	301 Stainless Steel	0.2550	0.5000	0.0180	0.0340	0.0120	70	lbs
WBEL025-8-25-301-PRESET	1/4	Standard	301 Stainless Steel	0.2550	0.5000	0.0250	0.0380	0.0100	160	lbs
WBEL025-8-38-301	1/4	Standard	301 Stainless Steel	0.2550	0.5000	0.0380	0.0470	0.0060	400	lbs
WBEL025-8-38-301-PRESET	1/4	Standard	301 Stainless Steel	0.2550	0.5000	0.0380	0.0470	0.0090	400	lbs
WBEL025S35301	1/4	Standard	301 Stainless Steel	0.2660	0.4690	0.0420	0.0530	0.0060	550	lbs
WBEL025L42301	1/4	Light	301 Stainless Steel	0.2580	0.5630	0.0420	0.0720	0.0120	600	lbs
WBEL025M52301	1/4	Medium	301 Stainless Steel	0.2580	0.6880	0.0500	0.0900	0.0130	650	lbs
WBEL025H61301	1/4	Heavy	301 Stainless Steel	0.2580	0.8130	0.0620	0.1140	0.0210	1350	lbs
WBEL025EH70301	1/4	Extra Heavy	301 Stainless Steel	0.2580	0.9380	0.0730	0.1300	0.0230	1450	lbs
WBEL03110-22-301	5/16	Standard	301 Stainless Steel	0.3170	0.6250	0.0220	0.0420	0.0150	89	lbs
WBEL031H45301	5/16	Heavy	301 Stainless Steel	0.3170	0.9380	0.0450	0.0720	0.0260	480	lbs
WBEL031L52301	5/16	Light	301 Stainless Steel	0.3220	0.6880	0.0500	0.0820	0.0130	1000	lbs
WBEL031M61301	5/16	Medium	301 Stainless Steel	0.3220	0.8130	0.0620	0.1000	0.0150	1100	lbs
WBEL031H70301	5/16	Heavy	301 Stainless Steel	0.3220	0.9380	0.0730	0.1150	0.0220	1500	lbs
WBEL037L61301	3/8	Light	301 Stainless Steel	0.3860	0.8130	0.0620	0.1000	0.0150	1300	lbs
WBEL037M70301	3/8	Medium	301 Stainless Steel	0.3860	0.9380	0.0730	0.1120	0.0200	1500	lbs
WBEL037M70301-PRESET	3/8	Medium	301 Stainless Steel	0.3860	0.9380	0.0730	0.0930	0.0200	1500	lbs
WBEL037H80301	3/8	Heavy	301 Stainless Steel	0.3860	1.0630	0.0830	0.1430	0.0240	2000	lbs
WBEL037M80301	3/8	Medium	301 Stainless Steel	0.3860	0.9380	0.0830	0.1130	0.0140	2100	lbs
WBEL037EH89301	3/8	Extra Heavy	301 Stainless Steel	0.3860	1.1880	0.0950	0.1580	0.0250	2600	lbs
WBEL050L40301	1/2	Light	301 Stainless Steel	0.5150	1.0630	0.0420	0.0900	0.0280	450	lbs
WBEL050L80301	1/2	Light	301 Stainless Steel	0.5150	1.0630	0.0830	0.1300	0.0190	2300	lbs
WBEL050M89301	1/2	Medium	301 Stainless Steel	0.5150	1.1880	0.0950	0.1520	0.0220	2800	lbs
WBEL050H98301	1/2	Heavy	301 Stainless Steel	0.5150	1.3130	0.0980	0.1570	0.0240	2870	lbs
WBEL050L90301	1/2	Light	301 Stainless Steel	0.5150	1.0630	0.0950	0.1420	0.0180	3300	lbs
WBEL050L109301	1/2	Light	301 Stainless Steel	0.5150	1.0630	0.1090	0.1350	0.0130	3800	lbs
WBEL050EH131301	1/2	Extra Heavy	301 Stainless Steel	0.5150	1.5000	0.1350	0.1830	0.0230	5200	lbs
WBEL05020125301	1/2	Standard	301 Stainless Steel	0.5150	1.2500	0.1250	0.1800	0.2000	5754	lbs
WBEL05018125301	1/2	Standard	301 Stainless Steel	0.5150	1.1250	0.1250	0.1700	0.0180	6000	lbs
WBEL062H131301	5/8	Heavy	301 Stainless Steel	0.6440	1.7500	0.1350	0.2000	0.0290	5486	lbs
WBEL062M131301	5/8	Medium	301 Stainless Steel	0.6440	1.5000	0.1350	0.1770	0.0200	5700	lbs
WBEL075L72301	3/4	Light	301 Stainless Steel	0.7730	1.5000	0.0720	0.1080	0.0300	1400	lbs
WBELM03-8-0.8-301	M3	Standard	301 Stainless Steel	3.2004 mm	8.0010 mm	0.8128 mm	1.0160 mm	0.0762 mm	1001	N
WBELM06-L-1.10-301	M6	Light	301 Stainless Steel	6.1976 mm	14.3002 mm	1.0668 mm	1.6510 mm	0.2540 mm	2313	N
WBELM10-L-1.5-301	M10	Light	301 Stainless Steel	10.2108 mm	20.6502 mm	1.5748 mm	2.3876 mm	0.3048 mm	6672	N
WBELM10-M-1.8-301	M10	Medium	301 Stainless Steel	10.2108 mm	24.0030 mm	1.8542 mm	2.9210 mm	0.4064 mm	7117	N

301 Stainless Steel Belleville Washers

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Diameter Belleville Type Outside Diameter Thickness Height Load Rating Item # Availability Price Quantity UOM

#10

Standard

0.3750

0.0200

0.0300

112

WBEL010S20301

5-7 Working Days

$0.14297/EA

See Quantity Discounts

#10 BELLEVILLE WASHER 010S20301, 301 SS

$0.14297/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.14297/ EA

1/4

Standard

0.5000

0.0380

0.0470

400

WBEL025-8-38-301

5-7 Working Days

$0.3105/EA

See Quantity Discounts

1/4'' BELLEVILLE WASHER 4-8-38-301, 301 SS

$0.3105/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.3105/ EA

1/4

Light

0.5630

0.0420

0.0720

600

WBEL025L42301

5-7 Working Days

$0.18819/EA

See Quantity Discounts

1/4'' LIGHT BELLEVILLE WASHER 4L42301, 301 SS

$0.18819/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.18819/ EA

1/4

Medium

0.6880

0.0500

0.0900

650

WBEL025M52301

5-7 Working Days

$0.19629/EA

See Quantity Discounts

1/4'' MED BELLEVILLE WASHER 4M52301, 301 SS

$0.19629/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.19629/ EA

1/4

Heavy

0.8130

0.0620

0.1140

1350

WBEL025H61301

5-7 Working Days

$0.58131/EA

See Quantity Discounts

1/4'' HVY BELLEVILLE WASHER 4H61301, 301 SS

$0.58131/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.58131/ EA

1/4

Extra Heavy

0.9380

0.0730

0.1300

1450

WBEL025EH70301

5-7 Working Days

$0.837/EA

See Quantity Discounts

1/4'' XHVY BELLEVILLE WASHER 4EH70301, 301 SS

$0.837/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.837/ EA

5/16

Medium

0.8130

0.0620

0.1000

1100

WBEL031M61301

5-7 Working Days

$0.42107/EA

See Quantity Discounts

5/16'' MED BELLEVILLE WASHER 5M61301, 301 SS

$0.42107/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.42107/ EA

5/16

Heavy

0.9380

0.0730

0.1150

1500

WBEL031H70301

5-7 Working Days

$0.72158/EA

See Quantity Discounts

5/16'' HVY BELLEVILLE WASHER 5H70301, 301 SS

$0.72158/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.72158/ EA

3/8

Light

0.8130

0.0620

0.1000

1300

WBEL037L61301

5-7 Working Days

$0.4559/EA

See Quantity Discounts

3/8'' LIGHT BELLEVILLE WASHER 6L61301, 301 SS

$0.4559/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.4559/ EA

3/8

Medium

0.9380

0.0730

0.1120

1500

WBEL037M70301

5-7 Working Days

$0.49815/EA

See Quantity Discounts

3/8'' MED BELLEVILLE WASHER 6M70301, 301 SS

$0.49815/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.49815/ EA

3/8

Heavy

1.0630

0.0830

0.1430

2000

WBEL037H80301

5-7 Working Days

$0.55499/EA

See Quantity Discounts

3/8'' HVY BELLEVILLE WASHER 6H80301, 301 SS

$0.55499/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.55499/ EA

3/8

Medium

0.9380

0.0830

0.1130

2100

WBEL037M80301

In Stock

$0.38853/EA

See Quantity Discounts

3/8'' MED BELLEVILLE WASHER 6M80301, 301 SS

$0.38853/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.38853/ EA

3/8

Extra Heavy

1.1880

0.0950

0.1580

2600

WBEL037EH89301

5-7 Working Days

$1.0877/EA

See Quantity Discounts

3/8'' XHVY BELLEVILLE WASHER 6EH89301, 301 SS

$1.0877/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.0877/ EA

1/2

Light

1.0630

0.0830

0.1300

2300

WBEL050L80301

5-7 Working Days

$0.56916/EA

See Quantity Discounts

1/2'' LIGHT BELLEVILLE WASHER 8L80301, 301 SS

$0.56916/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.56916/ EA

1/2

Medium

1.1880

0.0950

0.1520

2800

WBEL050M89301

5-7 Working Days

$1.0877/EA

See Quantity Discounts

1/2'' MED BELLEVILLE WASHER 8M89301, 301 SS

$1.0877/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.0877/ EA

1/2

Heavy

1.3130

0.0980

0.1570

2870

WBEL050H98301

In Stock

$1.0877/EA

See Quantity Discounts

1/2'' HVY BELLEVILLE WASHER 8H98301, 301 SS

$1.0877/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.0877/ EA

1/2

Light

1.0630

0.0950

0.1420

3300

WBEL050L90301

5-7 Working Days

$0.84213/EA

See Quantity Discounts

1/2'' LIGHT BELLEVILLE WASHER 8L90301, 301 SS

$0.84213/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.84213/ EA

1/2

Light

1.0630

0.1090

0.1350

3800

WBEL050L109301

5-7 Working Days

$0.9315/EA

See Quantity Discounts

1/2'' LIGHT BELLEVILLE WASHER 8L109301, 301 SS

$0.9315/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.9315/ EA

1/2

Extra Heavy

1.5000

0.1350

0.1830

5200

WBEL050EH131301

5-7 Working Days

$3.49488/EA

See Quantity Discounts

1/2'' XHVY BELLEVILLE WASHER 8EH131301, 301 SS

$3.49488/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$3.49488/ EA

1/2

Standard

1.2500

0.1250

0.1800

5754

WBEL05020125301

5-7 Working Days

$0.9315/EA

See Quantity Discounts

1/2'' BELLEVILLE WASHER 820125301, 301 SS

$0.9315/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.9315/ EA

1/2

Standard

1.1250

0.1250

0.1700

6000

WBEL05018125301

5-7 Working Days

$0.9824/EA

See Quantity Discounts

1/2'' BELLEVILLE WASHER 818125301, 301 SS

$0.9824/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.9824/ EA

5/8

Heavy

1.7500

0.1350

0.2000

5486

WBEL062H131301

5-7 Working Days

$5.16281/EA

See Quantity Discounts

5/8'' HVY BELLEVILLE WASHER 10H131301, 301 SS

$5.16281/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$5.16281/ EA

5/8

Medium

1.5000

0.1350

0.1770

5700

WBEL062M131301

5-7 Working Days

$2.673/EA

See Quantity Discounts

5/8'' MED BELLEVILLE WASHER 10M131301, 301 SS

$2.673/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$2.673/ EA

3/4

Light

1.5000

0.0720

0.1080

1400

WBEL075L72301

5-7 Working Days

$1.625/EA

See Quantity Discounts

3/4'' LIGHT BELLEVILLE WASHER 12L72301, 301 SS

$1.625/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.625/ EA

Light

14.3002 mm

1.0668 mm

1.6510 mm

2313 N

WBELM06-L-1.10-301

5-7 Working Days

$0.72158/EA

See Quantity Discounts

M6 LIGHT BELLEVILLE WASHER M6-L-1.10-301, 301 SS

$0.72158/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.72158/ EA

M10

Light

20.6502 mm

1.5748 mm

2.3876 mm

6672 N

WBELM10-L-1.5-301

5-7 Working Days

$0.6615/EA

See Quantity Discounts

M10 LIGHT BELLEVILLE WASHER M10-L-1.5-301, 301 SS

$0.6615/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.6615/ EA

M10

Medium

24.0030 mm

1.8542 mm

2.9210 mm

7117 N

WBELM10-M-1.8-301

5-7 Working Days

$0.5882/EA

See Quantity Discounts

M10 MED BELLEVILLE WASHER M10-M-1.8-301, 301 SS

$0.5882/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.5882/ EA

Material	Tensile Strength	Yield Strength	Compressive Yield Strength	Fatigue Strength	Elongation at Break	Charpy Impact	Hardness	Hardness
Material
301 Stainless Steel
301 Stainless Steel		(@strain 0.200%)	(Longitudinal)	(Endurance limit; test details not reported)	(in 2" (50 mm))		Brinell	Rockwell C
Imperial	185100 psi	140000 psi	115000 psi	80100 psi	9%	111 ft-lb	382	41
Metric	1276 MPa	965 MPa	793 MPa	552 MPa	9%	150 J	382	41

Material	% Iron	% Chromium	% Nickel	% Manganese	% Silicon	% Carbon	% Nitrogen	% Phosphorous	% Sulfur
301 Stainless Steel	73	16.0 - 18.0	6.0 - 8.0	2	0.75	0.15	0.1	0.045	0.03